0807.9.1- Recognize that all matter consists of atoms.



VOCABULARY



1.atoms.a part or paricle to be an irreduible congtituent of a specified system (smallest unit in living things)


2.molecules.a small particle (")

3. atomic number.the number of protons in an atomic nucleus (How many protons in the nucleus)

4.atomic mass.the mass of an atom usually expressed in atomic mass units. (How much mass)

5.atomic mass unit.a unit of mass equals to the number of isotopes. (Mass compared to isotopes)

6.neutral.having no charge. (no charge)

7.chemical change.a change in the chemical composition of a substance to produce a new material with a new properties. (changed chemically)

8.mass.the measure of the amount of matter in an object has in it measured in grams or kilograms. (How much matter)

9.matter.something that has mass which can exist in the form of a solid,liquid,gas,or plasma. (anything with mass)

10.ion.an atom or molecule that has an electric charge because it has either gained or lost electrons. (Has a charge)

11.proton.a positive charged particle found in the nucleus of an atom. (Positively charged)

12.electron.a tiny particle with a negative charge which orbits an atoms neucleus. (Negatively charged)

PICTURES

external image 99e1d8b62206a47de2046c10f5e11f96_3D_Chemical_Elements_ScreenSaver.jpgneutrons are made of three quar.ks






List of Particles
List of Particles
Click to see an enlarged picture
Click to see an enlarged picture
atoms are building block of matter

















protons carry positive charges




LINKS


www.google.com
www.ask.com
www.yahoo.com
www.bing.com
www.wikipedia.com